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The image is presenting a question related to pear harvests in the Netherlands over the past 25 years. The text mentions that the pear harvest has tripled, and the total harvest this year includes 139 million kilograms for export and 185 million kilograms remaining in the Netherlands.

The question asks: **"How many kilograms of pears were harvested this year compared to 25 years ago?"**

To solve this:

- The total pear harvest this year is \( 139 \, \text{million kg} + 185 \, \text{million kg} = 324 \, \text{million kg} \).
- The text states that the pear harvest has tripled in the last 25 years. This means that 25 years ago, the harvest was one-third of the current value.

So, 25 years ago, the harvest was:

\[
\frac{324 \, \text{million kg}}{3} = 108 \, \text{million kg}
\]

To find how much more was harvested this year than 25 years ago:

\[
324 \, \text{million kg} - 108 \, \text{million kg} = 216 \, \text{million kg}
\]

**Answer**: 216 million kilograms of pears were harvested this year compared to 25 years ago.

Let me know if you'd like a further explanation or details! Here are some related questions for more practice:

1. How much of the total pear harvest is used for export?
2. What percentage of the total harvest remains in the Netherlands?
3. If the pear harvest continues to grow at the same rate, what would the harvest be in another 25 years?
4. How many kilograms of pears were harvested 50 years ago if the growth rate stayed consistent?
5. What would be the economic impact of such a tripling in production over 25 years?

**Tip**: When calculating changes over time (like in harvests), always double-check if you're dealing with multiples (e.g., tripling) or percentages for clarity.

Hoeveel kg peren werden er dit jaar meer geoogst dan 25 jaar geleden?

Discover how the pear harvest in the Netherlands has quadrupled over the last 25 years. This problem uses proportions and arithmetic to calculate the difference between the pear harvests 25 years ago and today. Suitable for students in Grades 5-7.

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